I flew C141's in the reserves all over the world. You may try to diguise yourself but Americans stick out like a sore thumb.
Our manerisms(?) and habit patterns give us away all the time. So unless your very familiar with local cultures in each different country just try not to be a PITA and enjoy yourself.
Also be careful where and when you travel. Too many Americans go anywhere thinking they have "rights" while in a foreign country. Your "rights" end when you get to the US border and don't return until you cross it coming home.

The only time I would wear the "Canadian camoflage" would be while on an insurgent operation in Canada. But remember you will be shot as a spy, if caught. One slip of a "yous guys" or "what the fu**" and they can shoot you on the spot, or buy you a beer ,"Eh".

Dave

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1970 220D, owned 1980-1990
1980 240D, owned 1990-1992
1982 300TD, owned 1992-1993
1986 300SDL, owned 1993-2004
1999 E300, owned 1999-2003
1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD
1988 560SL, 100,000mi, owned since 1995
1965 Mustang Fastback Mileage Unknown(My sons)
1983 240D, 176,000mi (My daughers) owned since 2004
2007 Honda Accord EX-L I4 auto, the new daily driver
1985 300D 264,000mi Son's new daily driver.(sold)
2008 Hyundai Tiberon. Daughters new car